<?php
use Microsoft\Graph\GraphServiceClient;
use Microsoft\Graph\Generated\ServicePrincipals\Item\ServicePrincipalItemRequestBuilderGetRequestConfiguration;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestConfiguration = new ServicePrincipalItemRequestBuilderGetRequestConfiguration();
$queryParameters = ServicePrincipalItemRequestBuilderGetRequestConfiguration::createQueryParameters();
$queryParameters->select = ["id","appId","displayName","appRoles","oauth2PermissionScopes","resourceSpecificApplicationPermissions"];
$requestConfiguration->queryParameters = $queryParameters;
$result = $graphServiceClient->servicePrincipals()->byServicePrincipalId('servicePrincipal-id')->get($requestConfiguration)->wait();